Sperm motility is, for its relation to cell viability and fertility, a central component of the spermiogram, where consideration of motion patterns allows discrimination of sub-populations among boar spermatozoa. Extension and cryo-preservation imposes changes in these patterns in connection to handling, additives, temperature changes and the removal of boar seminal plasma (BSP) which apparentl...

PURPOSE Testicular spermatozoa can be retrieved successfully by the testicular sperm extraction (TESE) procedure and used for intracytoplasmic sperm injection. Disruption in the blood-testis barrier can lead to the production of antisperm antibodies (ASA). The aim of this prospective study was to investigate the frequency of ASA formation in couples after TESE procedure. METHODS Thirty-seven ...

We analyzed 34 azoospermic (AZ), 43 oligospermic (OS), and 40 infertile males with normal spermiogram (INS) together with 55 normal fertile males (NFM) from the Indian population. AZ showed more microdeletions in the AZFa and AZFb regions whereas oligospermic ones showed more microdeletions in the AZFc region. Frequency of the AZF partial deletions was higher in males with spermatogenic impairm...

Opioid peptides have been reported to have important functions in human reproduction. Indeed, very high concentrations of enkephalins and their degrading enzymes have been reported in human semen. In the present paper, we compare the activity of two enkephalin-degrading enzymes, aminopeptidase N and neutral endopeptidase 24.11, in different fractions of semen from normozoospermic, fertile men a...

Objective: The aim of this study is to report our experience on the management seminal vesicle cyst which an exceedingly rare acquired or congenital pathology. 
 Materials and Methods: A retrospective chart review was conducted seven patients diagnosed with between March 2011 2020. Patients’ complaints, fertility, physical signs, diagnostic tests intervention obtained findings, surgical in...

Background: Although the pathophysiology of the testicular damage associated with varicocele remains unclear, but varicocelectomy is considered a suitable technique for the treatment of individuals with clinical varicocele. The current study was designed to assessed semen parameters, chromatin packaging, and pregnancy outcome before and after varicocelectomy. Materials and Methods: Semen sample...

AIM To evaluate the effects of different intracorporeal ligation techniques with titanium clips, Plasma Trisector (Gyrus, USA) (PTG), and surgical silk on bilateral laparoscopic varicocelectomy (LPVx). MATERIALS AND METHODS Between May 2009 and August 2012, 100 patients who underwent bilateral LPVx were evaluated. The demographic parameters of patients, preoperative radiological findings, sem...

Breeding bulls are commonly fed high-energy diets, which may induce subacute ruminal acidosis (SARA). In this experiment, 8 Santa Gertrudis bulls (age 20 ± 6 mo) were used to evaluate the extent and duration of effects of SARA on semen quality and the associated changes in circulating hormones and metabolites. The bulls were relocated and fed in yards with unrestricted access to hay and daily i...

Astaxanthin (Asta), a photo-protective red pigment of the carotenoid family, is known for its multiple beneficial properties. In this study, the effects of Asta on isolated human sperm were evaluated. Capacitation involves a series of transformations to let sperm acquire the correct features for potential oocyte fertilization, including the generation of a controlled amount of reactive oxygen s...

This work evaluates sperm head morphometric characteristics in adolescents from 12 to 18 years of age, and the effect of varicocele. Volunteers between 150 and 224 months of age (mean 191, n = 87), who had reached oigarche by 12 years old, were recruited in the area of Barranquilla, Colombia. Morphometric analysis of sperm heads was performed with principal component (PC) and discriminant analy...